Telephone-lighting system.



J. A. BOZE. TELEPHONE LIGHTING SYSTEM, APPLICATION FILED APR. 14, 1913] 1,1 13,537. f Pat nted 001113 1914.

2 SHEETS-SHEET l.

WITNESSES: INVENTOR v ,Ja/nes-Afioie,

BY m 1 S 'ATTORNEY J. A. BOZE.

TELEPHONE LIGHTING SYSTEM. APPLICATION FILHDAPB...14, 1913.

1, 1 1 3,537 Patented Oct-13, 1914.

2 SHEETS-SHEET 2.

WITNESSES: INVENTOR W. /3. i JamgSABoz, /foam ATTORNEYS U'NrTED jsTATEs PAT nT JAMES BOZE, F WAXAHACHIE, TEXAS.

TELEPHONE-LIGHTING SYSTEM.

' To all whom it may concern:

- Be it known that I, JAMES A. Bozn, a citizen of the United States, residing at VVaxahachie', in the county of Ellis and State of Texas, have invented certain new and useful Improvements in Telephone-Lighting Systems, of which the following is a specification. o

This invention as specified relates to new and useful improvements in telephone light ing systems.

The object of the invention is to provide lamps on subscribers telephones arranged so that when a subscriber removes the receiver from the switch hook the lamp on his telephone will light and as soon as he has completed his connection with a called party, the lamp on the called telephone will light and will remain lighted after said called party removes his receiver from the switch hook. The lamp on the called partys telephone being extinguished when he replaces his receiver, but the lamp on the calling partys telephone burning until he replaces his receiver. v

Afurther objectis to provide such a system without changing or adding to the line circuit and to install said system by the use of a minimum number of parts.

A still further object of the invention is to provide a device of the character described that will be strong, d rable, efficient and simple and comparative y inexpensive to construct, also one in which the several parts will not be likely to get out of working order.

With the above and other objects in view,

the invention has relation to certain novel features of construction and operation, an example of which is described in the tollowing specification and illustrated in the. accompanying drawings, wherein:

Figure 1 is a circuit diagram of the system, Fig. 2 is a perspective view of a tele phoneequipped with the lamp, Fig i; is a plan of the lamp shade and clamp, and Fig. l is a side view of the clamp and shade, the latter being illustrated in section.

Referring to .Fig. 1 of the drawings the numerals 1 and2 indicate the positive and negative wires respectively, of an automatic telephone line circuit. In this figure I have shown only the circuits at one subscribers station, but it is to be understood that the circuits at all stations will be the same and the invention will be clearly understood by a Specification of Letters Patent. Patented Oct. 13, 1914. Application filed April 14, 1913. Serial No. 760,891. g i

detailed description of Fig. 1. The linewires have connection in the usual way to the ringing circuit wires 3 and 4 and the caling switch 16, transmitter 17 and receiver 18, being connected 1n series 1n said circuit and the Wires 11 and 15 being connected to line wire 1 and contact 10 respectively.

I have described the ordinary subscribers station equipment and the same forms no part of-my invention, which is me'rely used in connection therewith.

. To the wire 3 connection is made by a wire 19 which leads to a contact 20 in position to be engagedby the contact 10, but normally out of contact therewith. A lamp 21 is connected in series with this wire which Connection. is made with the switch .forms oneside of an auxiliary lighting circ t. When the calling party removes the vceiver from the switch hook 8, the latter breaks contact with contact-9 and contacts.

with contact 10 thus closing the talking circu t at his station. The contactlO contacts with the contact 20 thus closing the auxiliary .circuit over wire 19 and through the lamp -2l,-which now burns.

7* We will suppose the bell 7 to be located at the called station which has the same equipment. A wire 22 leads from the wire 19 to a bracket 23 on the bell. A light coil spring 24 has its upper end attached to the bracket and its lower end connected with apivoted contact 25 normally holding the'same out of contact with a steel contact 26 projecting from a steel ring 27 mounted on the core of the adjacent magnet. A wire 28 leads from the contact 26 to a point of connection with the wire 1 of the ringing circuit. The wire 22, spring 24: and wire 28 forms part of the auxiliary lighting circuit. In th wire 28 a resistancecoil 29 is connected in series. It is to be understood that the parts just described are to be installedat all subscribers stations; The calling party having lighted hislamp as described, calls his party. When the connection at the called partys station is completed, his ringing circuit is closed, the magnets of his bell being energized which causes the contact 26 to attract the' contact 25, Overcoming the tension of the spring 24:. In this way the auxiliary circuit is closed through the wire 19, lamp 21, wire 22, bracket 23, spring 24, contacts 25 and-26, wire 28 and coil 29 t0 the ringing circuit wire a. The called partys lamp is thus lighted. It is obvious that when the called party removes his receiver his lamp will still burn the same as the calling partys lamp and will only be eX- tinguished when he replaces his receiver; the

same thing being. true at the calling partysstation,

Having described the circuit, a description of the lamp will now be given, however, it is obvious that the lamp maybe located at any desirable point on the telephone and @arranged in any, convenient and advantageous manner as the principle of the invention is to provide a lamp and light the same by the usual operation of the subscrib'ers telephone set. In an automatic telephone the lamp will of course be used to illuminate the calling switch dial. and may be arranged to furnish light for observing the telephone directory book and other purposes.

In Figs. 2, 3 and 4 I have shown an eX- ample of telephone lighting and to which my invention is not limited. A two membcred clamp ring 30 is arranged toembrace the post of a telephone and receiving at one side the lug 31 of alamp shade, The

lug is held between the clamp members by a thumb-bolt 33, While diametrically oppo site, a thumb-bolt 34: is, employed to clamp the ring on the post. Within the shade the lamp 21, as indicated in' Figjl, is suitably mounted and connected as described, by the i, wire 19, which is brought out through the tact 20co6perating with the contact 10 of the talking circuit. v p

i What I claim, is:

1. In a subscribers telephone-set lighting system, the combination with the ringing andline circuits, of an auxiliary lamp c011 nected with said circuits and arranged to burn when said circuits are closed.

2. In a subscribers telephone set lighting system, the combination withthe ringing and line circuits, and the bell-coils thereof, of a lamp connected with said circuits and coils arranged so that a circuit through said lamp is closed when said coils are energized.

S. In asubscribers telephone set lighting system, the combination with the ringing and line circuits, the switch hook, and the bell coils, of a contact cooperating with the talking circuit contact of the switch hook, a pair of'normally open contacts associated with the bell coils, and a lamp connected with" contacts named and also connected with said circuits.

4. In a subscribers telephone set lighting system, the combination with the ringing and line circuits, of an auxiliary lamp connected with said circuits and arranged to burn when said circuits are closed, and a. resistance element in series with said lamp. 5. In a subscribers telephone set lighting system, the combination with the ringing.

and line circuits and the switch dial, of an auxiliary lamp connected with said circuits and'arranged to burn when said circuits are closed, said lamp being located 111 position to illuminate the switch dial of an automatic telephone.

. 6. In a subscribers telephone set lighting system, the combination with the ringing and line circuits, the switch hook, and the bell coils, of apair of magnetic contacts associated With thebell coils, a resilient member normally holding said contacts open, a circuit connection betweeni one of saidmagnetic contacts and the ringing circuit, a circuit connection between one oi saidrmagnetic contacts and one side of the 

